Changes to GET /teams/:year/:page_num/simple

api tag list removed

the response property items/city became nullable for the status 200

the response property items/country became nullable for the status 200

the response property items/state_prov became nullable for the status 200

added the non-success response with the status 404

the response property items/city became required for the status 200

the response property items/country became required for the status 200

the response property items/nickname became required for the status 200

the response property items/state_prov became required for the status 200

added the media type application/json for the response with the status 401

the optional response header Last-Modified removed for the status 200

deleted the header request parameter If-Modified-Since

added the new optional header request parameter If-None-Match

added the media type application/json for the response with the status 200